Laminated glazing

Patent metadata

Field	Value
Publication number	US-11097515-B2
Application number	US-201716470776-A
Country	US
Kind code	B2
Filing date	Dec 20, 2017
Priority date	Dec 21, 2016
Publication date	Aug 24, 2021
Grant date	Aug 24, 2021

Abstract

A laminated glazing including a first glass sheet and a second glass sheet laminated via at least one thermoplastic interlayer, and an optical sensor arranged on the inner face of the laminated glazing. The thermoplastic interlayer includes a zone that is opaque to visible wavelengths and that extends at least in the zone surrounding the optical sensor.

First claim

The invention claimed is:

1. A laminated glazing comprising:
a first glass sheet and a second glass sheet laminated by means of at least one thermoplastic interlayer,
an optical sensor positioned on an internal face of the laminated glazing,
wherein a material of the at least one thermoplastic interlayer comprises a zone Which is opaque to wavelengths of the visible region, said opaque zone extending at least into a zone around the optical sensor,
wherein the opaque zone also extends over an ent re periphery of at least one of the first class sheet and the second glass sheet and,
wherein the laminated dazing further comprises, on face 4 , an enamel strip comprising dots.

2. The laminated glazing as claimed in claim 1 , wherein the optical sensor is chosen from a camera, an infrared camera, a Lidar, and a laser pointer.

3. The laminated glazing as claimed in claim 1 , wherein the opaque zone also extends over a periphery of a internal face of the first glass sheet.

4. The laminated glazing as claimed in claim 1 , wherein the opaque zone of the at least one thermoplastic interlayer has a light transmission which is less than 5% of the incident light.

5. The laminated glazing as claimed in claim 1 , wherein a light transmission of the opaque zone of the at the least one thermoplastic interlayer is 0% of the incident light.

6. The laminated glazing as claimed in claim 1 , wherein the at least one thermoplastic interlayer is positioned substantially on a surface of the glazing.

7. The laminated glazing as claimed in claim 1 , wherein the at least one thermoplastic interlayer is formed from the opaque zone positioned around a nonopaque zone.

8. The laminated glazing as claimed in claim 1 , wherein the at least one thermoplastic interlayer is a sheet of polyvinyl butyral or of ethylene/vinyl acetate.

9. The laminated glazing as claimed in claim 1 , wherein the opaque zone is obtained by a bulk coloring of a periphery of the interlayer.

10. The laminated glazing as claimed in claim 1 , wherein the enamel strip overlaps the opaque zone over at least a portion.

11. The laminated glazing as claimed in claim 1 , wherein the enamel strip overlaps the opaque zone over a distance of between 4 and 30 mm.

12. The laminated glazing as claimed in claim 1 wherein the glazing is a windshield for a motor vehicle.

13. A laminated glazing comprising:
a first glass sheet and a second glass sheet laminated by means of at least one thermoplastic interlayer,
an optical sensor positioned on an internal face of the laminated glazing,
wherein a material of the at least one thermoplastic interlayer comprises a zone which is opaque to wavelengths of the visible region, said opaque zone extending at least into a zone around the optical sensor,
wherein the opaque zone extends over lower and upper edges of the laminated glazing and,
wherein the laminated glazing further comprises, on face 4 , an enamel strip comprising dots.

14. The laminated glazing as claimed in claim 13 , wherein the optical sensor is chosen from a camera, an infrared camera, a Lidar, and a laser pointer.

15. The laminated glazing as claimed in claim 13 , wherein the opaque zone of the at least one thermoplastic interlayer has a light transmission which is less than 5% of the incident light.

16. The laminated glazing as claimed in claim 13 , wherein the opaque zone of the at least one thermoplastic interlayer has a light transmission that is 0% of the incident light.

Assignees

• Agc Glass Europe

Inventors

• Sartenaer Yannick
• Occhionorelli Giovanni
• Legrand Denis
• Latner Marek
• Collignon Maxime

Classifications

• B32B17/10036

  comprising two outer glass sheets · CPC title

• B32B2605/006

  Transparent parts other than made from inorganic glass, e.g. polycarbonate glazings · CPC title

• B32B17/10788

  containing ethylene vinylacetate · CPC title

• B32B17/10018

  comprising only one glass sheet · CPC title

• Y10T428/24926

  including ceramic, glass, porcelain or quartz layer · CPC title